Full cowl replacement

[HK1837]

Pagewood bodies have an assembly plant tracking number on the firewall. It belongs to the tags.

You'd cut the floor off the donor a few mm below the seam and grind off the remainder to leave a clean top half of the join attached to the firewall, then do the same on the car but above the join, and then drill the spot welds out of your car's floor. When you put the donor firewall in you weld through the holes in the floor half of the joint but the top (firewall half) remains as original.

Yes for the pillars. That is how I've seen heaps done, using the stainless windscreen moulding holes as a reference point on both original and donor cut the car's "upper" half of the 2 piece pillar up at a fixed distance down from the uppermost hole. And cut its "lower" half a fixed distance up from the lower hole, then unpick the spot welds in between the cuts. This will leave you with the lower half of the pillar protruding away from the upper half like if you are sticking your lower lip out. Repeat on the donor but the opposite way about. When you sit the firewall on the pillars will overlap, whack a tek screw on each side through a spotweld hole and align it all up using stripped doors to get the gaps right before welding at the 2 x joins and plug fill the spotwelds. There is no exposed steel on finished & painted surfaces except for the small area across the 1 x lower half of the pillar join where the door closes, the rest is covered by the windscreen, pillar mould, pinch weld or stainless screen surround.

Before you attempt the above though try and find an old rusty wreck and cut its pillar out and cut through in a few spots, you'll see there is a re-inforcement in it that has big spotwelds to join it to the 2 x halves of the pillar, just make sure you are familiar with how it all fits as it will be obvious how to do it once you get your hands on it. From memory you can leave this re-inforcement attached to one half of the pillar by removing spotwelds up the pillar. Talk to panel beater mates too, they are probably better placed to do proper structural welds or you too.

There is some welding to do between the firewall joint and the door opening or elsewhere depending upon where you do the joint. The ones I've seen they used the whole firewall and front floor and joined them across the sills and at the factory joint between the front and rear floors but you don't have this much in the donor cut.